What Are Comps in Real Estate?
Published by Cash Flow Deals · Last updated 2026-08-04 · Published and reviewed for compliance by Camilo Palacio, a Florida Licensed Realtor
Comps, short for comparable sales, are recently sold homes similar in size, condition, and location to the one being valued. Appraisers and agents use them to figure out what a house is actually worth right now, not what an owner hopes it's worth. Only closed sales count as true comps. Active listings and pending sales are reference points, not comps.
| Factor | Pulling Comps Yourself | Working With a Licensed Professional |
|---|---|---|
| Data access | Public records and sites like Zillow or Redfin, updated on their own schedule | MLS access with real-time closed sale data, off-market comparables, and pending activity |
| Adjustments for differences | Rarely adjusted for lot size, condition, or upgrades in a structured way | Line-by-line dollar adjustments for square footage, condition, age, and location |
| Use in a real offer | Good for a ballpark number | Required for a loan-backed offer, since a lender's appraiser must independently confirm value |
Comps vs. Comparables vs. Active Listings
Comps, short for comparable sales, are homes that already closed, meaning the sale is done and the price is a real, agreed-upon number. That's the whole point of a comp: it reflects what a buyer actually paid, not what a seller hoped to get. Active listings are asking prices, not sale prices, so they show what sellers want, not what the market will bear. Pending sales sit in between: a price has been agreed to, but it hasn't closed yet and could still change. An appraiser's report leans on closed comps almost exclusively. An agent's pricing conversation might reference active and pending listings too, but only as context, not as the core evidence.
How Comps Get Chosen
A good comp is close in three ways: location, size, and time. Location usually means the same neighborhood or a comparable one nearby, not just the same zip code. Size means similar square footage, bedroom and bathroom count, and lot size, since a 1,200 square foot home and a 2,800 square foot home rarely tell you much about each other even if they sit on the same street. Time means recent. Exactly how recent depends on how active that market is: a fast-moving market might only need the last few months, while a slow or thin market can force an appraiser to look back further just to find enough real sales to work with.
How Adjustments Work
Comps are almost never identical to the subject property, so a straight average would be misleading. Instead, an appraiser adjusts each comp's sale price up or down for the differences: add value for an extra bedroom the comp lacks, subtract value for a garage the subject property doesn't have, adjust for a renovated kitchen, a pool, or a bigger lot. Every adjustment is tied to a dollar amount and shown in the report, not just guessed at. The result is a set of adjusted values that should land in a tight range if the comps and adjustments were done right.
Comps for Pricing vs. Comps for Appraisal
An agent building a pricing strategy has more room to work with. A comparative market analysis can pull in active listings to show current competition, pending sales to show where the market is heading, and closed sales to anchor the number, all to help a seller pick a smart list price. An appraiser doing a report for a lender has a narrower job: confirm the home secures the loan amount using solid, closed, arm's-length sales, because a lender is relying on that number to protect real money.
Why Comps Still Matter If You Get a Direct Offer
Even a fast, direct offer should be built on real comps, not a guess. A locked net price offer, including one through Cash Flow Deals' network, still starts from the same sold-comp data an appraiser or agent would pull. The difference isn't whether comps get used. It's whether the number built from them stays fixed once repairs get scoped, or gets renegotiated after the fact.
Common questions
How far back do comps need to be?
There's no single fixed rule. Most appraisers try to stay within the last several months, but the exact window depends on how many sales that specific market has had. A slow or thin market can force a wider time window just to find enough usable data.
Can active listings count as comps?
Not for an appraisal. Active listings are asking prices, not confirmed sale prices, so they show up as context in an agent's pricing conversation, not as evidence in a formal appraisal report.
What happens if there aren't any good comps nearby?
The appraiser widens the search radius or extends the time window. In genuinely unique cases, an appraiser can lean more heavily on other valuation approaches, like estimating rebuild cost, instead of relying only on sold comps.
Do online home value estimators use the same comps a real appraiser uses?
They pull from similar public sale data, but an algorithm can't walk the property, see condition, or catch an upgrade that never made it into public records. That's why an automated estimate and a real appraisal can land on noticeably different numbers.
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What this means for your options
Every path to selling a house has real tradeoffs. Cash Flow Deals is built for the middle: faster than a traditional listing, more money than a cash investor.
Wait and see
Keep the property as-is and hope conditions improve. The mortgage, insurance, and upkeep keep costing money while you wait, with no set date for things to turn around.
List with a traditional agent
Standard MLS listing, typically 5-6% in commission, and a financed buyer whose deal depends on appraisal, inspection, and lender approval — any of which can fall through after weeks on market.
Sell to Cash Flow Deals
No repairs, no showings, no financing contingency on your side — our novation structure connects you with a bank-financed buyer at a price locked at signing. Usually within one business day.
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